MarkoH01: Hmmmm .... the auto update feature of steam has been criticized again and again and I like to decide for myself if I want to install the newest version of a game or not. And speaking of convenience. It is ONE additional Click to install the game and you can save and reinstall the game without starting the client again. There are countless issues speaking against the steam client and only a few which does not speak against this client. If one could buy every game on GOG - I would!
You're simply proving my point further:
you don't value automatic updates, so that's not a feature you're interested in. That's fine.
However, that doesn't mean
other people aren't interested, and since both options have drawbacks, it is not possible to argue that one is better than the other (because it all depends on the value people assign to these things).
If you want to convince someone to buy a game from GOG instead of Steam, you need to give them a reason, and more importantly, you need to make sure they don't have a
better reason to stay with Steam. DRM-free is a very good reason for many of us, but that doesn't mean it's a good reason for everyone else, or that it means enough for everyone.
(Also remember that DRM-free and convenience is just part of the equation. Steam has several other feature that some people genuinely like, and GOG hasn't - and vice versa.)
MarkoH01: And speaking of convenience. It is ONE additional Click to install the game and you can save and reinstall the game without starting the client again.
Here's the minimum effort needed to install a game on GOG, starting from the purchase complete screen:
Open account page.
Click game in list.
Click to download the installer (using the GOG.com downloader).
Wait for the download to finish and the installer to launch automatically (I'm assuming that option is on, since this leads to fewer clicks)
Accept EULA.
Click Install.
Wait.
Click Quit (or Launch Game).
When game updates, go back to step 1 (except this time you need to figure out if you need to download a patch or the complete installer)
Here's the same for Steam:
Click the big Install Games button.
Click next.
If there's a special EULA, click next again.
Wait for download to start.
Click finish.
Wait for download.
When game updates, do nothing. Steam updates it automatically.
The Steam process is much simpler to use, and that's why some people want to stick with it.